EP 0042877 A1 19820106 - A METHOD FOR THE SEPARATION OF CARBON ISOTOPES BY CHEMICAL EXCHANGE METHOD.
Title (en)
A METHOD FOR THE SEPARATION OF CARBON ISOTOPES BY CHEMICAL EXCHANGE METHOD.
Title (de)
VERFAHREN ZUR TRENNUNG VON KOHLENSTOFFISOTOPEN DURCH CHEMISCHEN AUSTAUSCH.
Title (fr)
PROCEDE DE SEPARATION D'ISOTOPES DU CARBONE PAR ECHANGE CHIMIQUE.
Publication
Application
Priority
- JP 3285880 A 19800315
- JP 17078079 A 19791227
Abstract (en)
[origin: WO8101802A1] A process for separating carbon isotopes, which comprises contacting an aqueous solution containing acid dissociation type and non-dissociation type chemical species of carbon-containing acids with a solid phase anion exchange resin to thereby simultaneously conduct a carbon isotope exchange reaction between said acid dissociation type chemical species and non-dissociation type chemical species and adsorb said acid dissociation type chemical species on said anion exchange resin, thus C12 and C13 being separated into the solution phase and the solid phase, respectively, or vice versa, for the concentration of C13. This process is extremely effective and can be conducted inexpensively as compared with conventional separating processes by chemical exchange between gas and liquid phases, between gas and solution phases, or between solution and solution phases.
Abstract (fr)
Procede de separation d'isotopes du carbone, consistant a mettre en contact une solution aqueuse contenant des especes chimiques du type a dissociation acide et du type a non dissociation acide d'acides contenant du carbone avec une resine a echange d'anions en phase solide de maniere a conduire simultanement une reaction d'echange d'isotopes du carbone entre lesdites especes chimiques du type a dissociation acide et les especes chimiques du type a non dissociation et absorber lesdites especes chimiques du type a dissociation acide sur ladite resine d'echange d'anions, C12 et C13 etant ainsi separes dans la phase de solution et dans la phase solide, respectivement, ou vice-versa, pour la concentration en C13. Ce procede est extremement efficace et peu couteux par rapport aux procedes de separation conventionnels par echange chimique entre des phases gazeuse et liquide, entre des phases gazeuses et de solution, ou entre des phases de solution.
IPC 1-7
IPC 8 full level
B01D 59/30 (2006.01)
CPC (source: EP US)
B01D 59/30 (2013.01 - EP US); Y10S 423/07 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 8101802 A1 19810709; DE 3069848 D1 19850131; EP 0042877 A1 19820106; EP 0042877 A4 19820510; EP 0042877 B1 19841219; US 4406870 A 19830927
DOCDB simple family (application)
JP 8000326 W 19801225; DE 3069848 T 19801225; EP 81900082 A 19801225; US 29322081 A 19810810